<template>
  <div class="article-container">
    <!-- 导航栏 -->
    <van-nav-bar
      fixed
      left-arrow
      @click-left="$router.back()"
      title="文章详情"
    ></van-nav-bar>
    <!-- /导航栏 -->

    <!-- 加载中 loading -->
    <van-loading
      class="article-loading"
      type="spinner"
      color="#1989fa"
      v-if="loading"
    />
    <!-- /加载中 loading -->

    <!-- 文章详情 -->
    <div class="detail" v-else>
      <h3 class="title">{{ article.title }}</h3>
      <div class="author">
        <van-image
          :src="article.aut_photo"
          round
          width="1rem"
          height="1rem"
          fit="fill"
        />
        <div class="text">
          <p class="name">{{ article.aut_name }}</p>
          <p class="time">{{ article.pubdate | relativeTime }}</p>
        </div>
        <van-button
          round
          size="small"
          type="info"
          v-if="!article.is_followed"
          @click="followed"
          >+ 关注</van-button
        >
        <van-button round size="small" type="danger" v-else @click="followed"
          >取 关</van-button
        >
      </div>
      <div class="content">
        <div v-html="article.content"></div>
      </div>
      <van-divider>END</van-divider>
      <div class="zan">
        <van-button
          round
          size="small"
          hairline
          type="primary"
          plain
          icon="good-job-o"
          >点赞</van-button
        >
        &nbsp;&nbsp;&nbsp;&nbsp;
        <van-button
          round
          size="small"
          hairline
          type="danger"
          plain
          icon="delete"
          >不喜欢</van-button
        >
      </div>
       <!-- 文章详情 需要放在文章中 要在文章挂载完后拿到ID后在进行传参-->
       <ArticleComment :id='article.art_id'/>
    </div>
  </div>
</template>

<script>
import ArticleComment from './components/comment.vue'
import { reqGetArticleInfo } from '@/api/article'
import { reqFollowUser, reqUnFollowUser } from '@/api/user'
// push时传对象, params (写name传递) 就通过 this.$route.params获取
// push时传对象, query  (写path)     就通过 this.$route.query 获取
// 动态路由传参  /article/:id        this.$route.params 获取

export default {
  name: 'ArticleIndex',
  components: {
    ArticleComment
  },
  data () {
    return {
      loading: true, // 控制加载中的 loading 状态
      article: {},
      show: false,
      isFollowed: false
    }
  },
  created () {
    this.getArticleInfo()
  },
  methods: {
    async getArticleInfo () {
      try {
        const {
          data: { data }
        } = await reqGetArticleInfo(this.$route.params.id)
        this.article = data
        this.loading = false
      } catch {
        this.$toast.fail('请检查网络')
      }
    },
    async followed () {
      try {
        if (this.article.is_followed) {
          await reqUnFollowUser(this.article.aut_id)
          this.$toast.success('取关成功')
        } else {
          await reqFollowUser(this.article.aut_id)
          this.$toast.success('关注成功')
        }
        this.article.is_followed = !this.article.is_followed
      } catch {
        this.$toast.success('操作失败')
      }
    }

  }
}
</script>

<style lang='scss' scoped>
::v-deep .van-icon {
  color: #fff;
}
.article-container {
  position: absolute;
  left: 0;
  top: 0;
  overflow-y: scroll;
  width: 100%;
  height: 100%;
}
.article-loading {
  padding-top: 100px;
  text-align: center;
}
.error {
  padding-top: 100px;
  text-align: center;
}
.detail {
  padding: 50px 10px;
  .title {
    font-size: 16px;
  }
  .zan {
    text-align: center;
  }
  .author {
    padding: 10px 0;
    display: flex;
    .text {
      flex: 1;
      padding-left: 10px;
      line-height: 1.3;
      .name {
        font-size: 14px;
        margin: 0;
      }
      .time {
        margin: 0;
        font-size: 12px;
        color: #999;
      }
    }
  }
  .content {
    font-size: 14px;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-all;
    ::v-deep img {
      max-width: 100%;
      background: #f9f9f9;
    }
  }
}
</style>
